Dbilling machine



- (No Model.) W R X .5 SheetsSheet 1.

DRILLING MACHINE.

No. 564,479. Patented July 21, 1896.

THE Noams PETERS co, PHoYaLnnu, wunlnsrou. n. c.

No Model. W. R.'FOX.

DRILLING MACHINE.

No. 564,479. Patented July 21, 1896..

5 Sheets$heet 4.

(No Model.)

w. B. -]:"OX. DRILLING MACHINE.

No 564,479.. Patented July'21, 1896;,

T mums PErEna 0a.. PHOTQ-Lm6- WASNINGTO (No Model.) W R FO v 5Sheets-Sheet 5.

.- DRILLING MACHINE, No. 564,479. Patented July 21, L896.

UNITED ''STATES' PATENT OFFICE.

XVILLIAM R. FOX, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO THE FOX MACHINECOMPANY, OFSAME PLACE.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 564,479, dated July 21,1896.

Application filed June 27, 1895, Serial No. 554,274. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM R. FOX, a citi which the following is aspecification, refer-' ence being had therein to the accompanyingdrawings. 7

My invention isdesigned especially for drilling spoke-holes in the rimsof bicycles, though it is not limited in its use to this class of work.

It is my object to so drill the holes that the axial lines thereof willbe directly in line with the axis of the spoke, so that the spoke willextend directly to the hub without being bent at the nipple and thenipple itself will stand in line with the spokes.

' The general tendency in drilling wooden rims is to drill toward thecenter of the wheel and not in line with the direction of the spoke, sothat when the nipple is screwed up it brings the bend in the spoke nextto the nipple, which has atendency to weaken and break the spoke at thatpoint and also to pull the nipple to one side, making an uneven bearing,enlarging the hole in the wood, and tending also to split and render therim useless.

My, invention includes, preferably, two radial drills, with means foradjusting them to different angles to drill the holes tangent to thewheel-hub and a support orspider for holding the rim and. for presentingdifferent parts thereof to the drills, said support being adjustable, sothat the drills will operate at an angle to the rims to drill the holewhose extended axial line will strike the hub at or near the outer edgethereof.

- My invention includes a special arrangement of dial-plate combinedwith the spider, by which the holes for the opposite sets of spokes maybe properly located, said spider being adapted to permit the readyreversal of the rim.

- In the drawings, Figure 1 is a'front view with the spider removed.Fig. 2 is a side elevation; Fig. 3, arun view of the spider; Fig. i, atop plan view of the machine; Fig. 5, a detail View of the plunger forholding the rim of the spider and means for operating said clamp; andFigs. 6 and 7 are details of the countersink-stops.

The rim to be drilled is seated at 1, in the ends of thespider-plungers, said ends being rounded to conform to thecross-sectional rim by the toggle-links X, connected to the slidingsleeve 0 and the screw-pins O fitted to screw-threaded sockets in theplungers,

and by this connection the plungers may be adjusted. The sleeve may beheld in place against the reaction of the tire by the nut O on thethreaded hub 6 of the spider. The nut has handles 2, by which it may beoperated. The spider is adapted to turn on the pin N, carried by abracket L, pivoted near its upper end to ears K of the standard B, andadjustable as to inclination by the screw N bearing against the standardor column and passing through the upper end of the bracket.

The spider is held in any position when turned about its axial centerpin N by a stoppin R entering one of the series of holes 7 formed in adial-plate Q, the plate having two or more rows of holes for the purposehereinafter mentioned. 'The stop-pin is carried by a lever 10 pivoted toblock 8 adjustable in the bracket L and the treadle' and rod 11 12, sothat the pin may be withdrawn to allow the spider to be turned one stepfor drilling the next hole in the rim.

The drills 13 14:, of which I preferably use two, have their shaftsjournaled in boxes F, having upper and lower bearings 16 and 17, saidboxes having flanges 1S bearing upon the plates G, said boxes being adjustably connected to the plate by a pivot, so that the boxes with thedrill-spindles may be set at diiferent angles to suit difierent sizes ofwheels, and when adjusted they may be fixed by the set-screws H. Theplates G are supported by the face-plate E by screws J passing throughslots in the face-plate and into the said plates G, and these platesmaybe projects on each side at the top of the column ICO or standard.drill'spindles, are arranged between the 11pper and lower bearings 16and 17 of the boxes,

and these are driven from a belt-wheel T, from which the belt passesupon idler-pulleys S, thence around the pulleys 20, and also 1 aroundthe tightener-pulley 22, which may be held in any adjusted position bythe wingnut V, Fig. 2.

In Fig. 1 I show the rim to be drilled ini dotted lines and also the hubthereof. The

spindles are set at such an inclination that. their axial lines, ifextended, would be tangent to the hub periphery; therefore the holes Iwhich will be drilled through the rim will coincide exactly with thistangent line. Two

ameters of rims.

By reference to Fig. 2 it will be seen that the axial line of the drill,if extended, would strike the outer end of the hub at the point P, dueto the inclination of the spider in relation to the direction of motionof the spindle, and thus the hole drilled will have a second inclinationdirectly in line with the spoke which must connect with the outer end ofthe hub.

The spider is turn ed step by step, and held at the various positions bythe stop-pin engaging the holes in the dial. hen one set of holes havebeen drilled for the spokes on one side of the wheel, the rim is removedfrom the plungers, which are slightly retracted for the purpose, and therim is reversed and replaced thereon, and the stop-pin nowengages thesecond row of holes in the dialplate, which are arranged intermediate ofthe holes in the first plate. The holes for both sets of spokes are thusdrilled at the properangle. to suit .diiierent sizes of wheels, and forthis purpose the block carrying the stop-pin is made adjustable towardand from the center of rotation in a slot 23 of the support L, and theblock is fixed in any position by the nut R.

The spider is adjustable in and out on the pin N, by adjusting thecollar in back of it, this being necessary to bring the rims ofdifferent diameters of wheels directly in line with the drills.

The belt-pulley T is driven from the tight pulley U, there being also aloose pulley U.

The drillsare held up in normal position by the .eounterweights 20 thelevers 26 of which are swiveled to the upper ends of the spindles, saidlevers being fulcrnmed upon the swinging links 27. The forward ends ofthe levers have handles by which the levers may be depressed to forcethe drills to their work. These levers may be depressed simultaneonslyby the chains connected thereto and to a common handle 28.

The drills have countersinks, by which the hole is drilled and thecountersink termed at The pulleys 20, for driving the The sets of holesare arran ed the same time. The set-screws f serve to limit the downwardmovement of the handles and consequently the depth of the countersink.

My machine may be used for various kinds of work other than bicyclerims.

In order to limit the extent to which the drill will enter the rim forthe countersink, I provide a countersink-stop for each drill composed ofan arm 20 pivoted to the support 21, Fig. 1, and slotted to receive thedrill, the outer end of the support being bent down to bear on the rimclose to the drill. A washer 22 on the face of the drill-holder bears onthe stop-lever when the countersink has been bored, and thus determinesthe depth of the same. This arrangement of stop gives uniform wear andit provides sufficient space around the drill for the escape ofshavings. The stop-levers are held constantly in contact 3 with thedrill-holders by the springs 23.

The centering stop-pin 24 is arranged in the holder 21, and when one setof holes has been bored and the rim reversed this pin will center therim for the other set.

I claim- 1. In combination, the vertical standard having an axis orbearing extending laterally therefrom, a rotary work-support on saidaxis, the upper faceplate, the drill-holding boxes connected theretopivotally and also to have sliding movement thereon, means for adjustingthe boxes toward and from each other along the faceplate, means forholding the drills in inclined position to which they may be adjusted,and means for adjusting the laterally-projecting axis as to inclinationto adjust the rotary support in a plane at right angles to the plane ofthe drills, substantially as described.

2. In combination in a drilling-machine,

the drill, the rotary work-support, the dial having holes, the stop-pin,and the adjustable bracket carrying the work -support, whereby theinclination of the same in rela tion to the drill be changed, the saidstop-pin being carried by the adjustable bracket and adjustable thereontoward and from the axis of the rotary support, substantially asdescribed.

3. In combination in a drillingnnachine, the drill, the rotaryworksnpport, and the pivoted bracket carrying the bearing there for,said bracket bei adjustable as to inclination and said bearing beingadjustable in the bracket toward and from the drill, substantially asdescribed. 7

4. In combination in a drillingunachine, the drill, the rotarywork-support, the dial, the pivoted bracket carrying the work-supportwith its dial and the stop-pinadjustable on the pivoted bracket towardand from the axis of the dial, and means controlling the stop-pin,comprising the lever on the bracket and the connections thereto,substantially as described.

5. In combination in a drilling-machine,

the work-support and the drill carrying a countersink and a stop forlimiting the action thereof, consisting of the pivoted part engaging therim adjacent to, but at one side of the drill and movable therewith onits pivot in the retracting and advancing movement thereof,substantially as described.

6. In combination in a drilling-machine, the work-support, the drillcarrying a countersink and a stop for limiting the action thereof,consisting of the pivoted slotted part through which the drill extends,the free end of said stop bearing on the rim adjacent to the drill andto one side thereof, and moving pivotally to and from the work with thedrill, substantially as described.

'7. In combination with a rotary work-support, a drill arranged to drillholes in the rim carried thereby, and a centering-pin arranged adjacentto the rotary work-support to enter the holes of the rim as carried bythe support after the drill has made holes therein, substantially asdescribed.

8. In combination with a rotary Work-support, a drill and acentering-pin arranged adj acent to the said work-support to actsimultaneously upon different parts of the rim carried thereby and thedial and stop for controlling the rotary work-support.

9. In combination, a rotary work-support in the form of a spider havingradial arms with bearings at the outer ends for the rim to be drilledand the drill and the centering-pin arranged adjacent to saidwork-support to act on different parts of the rim carried thereby,substantially as described.

10. In combination, a rotary work-support comprising radially-adjustablearms having bearings at their outer ends to support the rim and thedrill and centering-pin to act on different portions of the rim carriedby the said adjustable arms, substantially as described.

11. In combination the rotary work-support, the centering-pin, thedrills on each side of the same and the stops pivoted on each side ofthe centering-pin, substantially as described.

12. In combination, the standard, the drills supported at the upper endthereof and adjustable as to inclination, the bracket pivotallyconnected to the standard and extending down along the same, the shaftor bearing extending laterally from the bracket, the rotary work-supporton said bearing and means for adjusting the bracket to adjust theinclination of the work-support relative to the drill, substantially asdescribed.

13. In combination, the work-support, the drill and the countersink-stoppivoted off at one side of the drill extending across the same andengaging therewith and having its free end bent down to engage the workto one side of the drill, substantially as described.

14:. In combination, the drill, the support for the work and acountersink-stop arranged to bear on the work adjacent to the drill butat a slight distance therefrom so as to leave a space between the drilland stop, substantially as described.

15. In combination, the standard, a rotary work-support, a bearing-shafttherefor, adapted to permit the adjustment of the work-support along thesame, means for adjusting the inclination of said bearing to change theinclination of the rotary work-support and a drill with holding andadjusting means therefor to change its inclination in a plane at rightangles to the work-support, substantially as described.

16. In combination, the standard, a rotary work-support, a bearingtherefor adapted to permit the adjustment of the work-support along thesame, and arranged to be adjusted both as to inclination and toward andfrom the drills, means for holding the bearing in its adjusted positionand means for adjusting the drill as to inclination in a plane at rightangles to that of the rotary work-support.

In testimony whereof I affix my signature in presence of two witnesses.

WVILLIAM R. FOX.

\Vitnesses:

J NO. DUFFY, EARL STOKE.

